Locomotive bed



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i Ei iR farm/or f/ar/y W7 l f/a er Dec. 22, 1925- H. M. PFLAGER LOCOMOVTIVE' BED Filed Dec. 1. 1924 famed M22, 1925,-

combining many locomotive UNITED STATES PATENT ornica,

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comm, or er. LOUIS, mssoum, A conrona'rxon or LOOOHOTIVE BED.

. Application filed December 1,1924. Serial in. 758,277.

To all whom it may cmwem:

Be it known that I, HARRY M. Prnaean a citizen of the United States, residing at t. Louis, Missouri, have invented acert-ain new and useful Im rovementin Locomotive Beds, of which t e following is a specifica-- tion, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to: railwa rolhng stock and consists in an improve locomotive bed construction of the type adapted for locomotives utilizing trailer trucks and having a cradle at the rear of the side frames which is supported by the trailer truck.

In a prior Patent, No. 1,174,272, issued to me-March 7, 1916, I show a locomotive bed formed of a oneiece casting and my present invention uti izes this unitary construction for a bed of the type referred to, and the objects of my invention are to form integral with the side frames ofthe locomotive, cradle members, steam cylinders and steam cylinder supply chambers, guide yokes, a deck plate with drawbar pocket, an air'brake cylinder bracket trailer truck center and side bearings, and boiler sup ort elements either acting directly or use in connection with expansion plates. By thus arts, I provide a rigid structure in whic the relative positions ofdifferent operating members on the locomotive are fixed and the distances between them are not subject to as great variations in the original structure as are likely to be caused b an assembled construction, and I also avoi qlay atdifierent points due to loosening of t e fastenin elements used in an assembled structure. places where the vclearance between bed and other locomotive parts is slight the integral construction permits the use of ments or parts shaped better for the purpose intended and such structure. also eliminates the difficulty encountered in attempting to assemble separate members in inconveniently narrow places.

In the accompanying drawings which illustrate m invention- Figure is a top view of the longitudinalhalf ofa locomotive bed embodying my n-' velition.

igure Fi line 2 isa side elevation of the same;

ofFigure1.,

11 various:

heavier ele- 14.

forme integrally with the side frame is the 3'is a vertical transverse section on Figure 4 is avert ical transverse section on line 4 4 of Figure 2. v F1%ure 5 is a similar section illustrating a. modi ed construction. 7 1

Figures 6 and 7 are vertical lon itudinal sections taken on lines 66 and 7 ,respectively, of Figure 1. p

Figure 8 1s a vertical transverse section taken on line H of Figure 2.

Figures 9 and 10 are vertical transverse sectionstakenon lines .99 and 1010, respectively, of Figure 1. I

The locomotive bed comprises side frames 1 integrall connected at various oints by cross mem rs 2 and provided wit drivin box pedestals3. Extending rearwardly 0% the rear destals 3 are integral cradle forming mem ers 4 united at their rear ends by a transversev member 5 forming a deck plate and rovided with a drawbar ocket 6. Extendmg outwardly from cra le 4 adjacent .to the deck 'plate is an integral arm 7 provided with side bearings 8 for engaging the trailer truck, which is not shown. The deck plate andarm are provided with ex ansion plate bearings .9 an the forward en of the cradle has integral slidingfboiler supports 10. The forward-ends of the cradle members are provided with suitable rojections 11, forming brake hanger lu ntermediate the cradle and trailer truc .side bearings the cradle member 4 is provided with an inte al bracket 20 for mounting an air cylm er.

, At thelend' of the side frames opposite to the cradle members are the steam cylinders 12 which are cast with the side frames and preferably formed integrally with the steam cylinders are the steam supply chambers or steam chests 13 which are also integrally united with the bed and the boiler support S aced from the steam cylinder but guide yoke 15-. The forward endspf the cradle members at the rear of the side frames are connected by a cross member 16 the lower portion of which forms a center ,bearing16 upon which may be pivoted the forward end of the trailer truck frame. 1

In the construction shown in Figure 5, the steam cylinder 17 is supplied through a. iston valve 18 which is integral with the bed 19 but is notintegrally united with the steam chest. Obviously, the steam supply member could be formed separately from the bed and steam cylinder and ap lied thereto in the usual manner without separting from that part of my invention which includes an integral construction of the steam cylinder and locomotive bed.

Various other modifications, such as the elimination of one or more of the particular elements mentioned as forming part of the locomotive bed casting, will suggest themselves tothose familiar with the art and I include such modifications within the scope of my invention as claimed.

With the use of my invention in its preferred form, the entire bed is formed of a one-piece casting and the likelihood of variations in positioning the wheels, pistons,

connecting rods, brakes, side bearings, etc., is reduced to a minimum and when the locomotive is once assembled, the likelihood of these parts being thrown out of alignment or other proper relative position is also minimized. These advantageous features are in addition to the advantages of better distribution of material and reduction in the original expense of producing a complete locomotive.

I claim:

1. A locomotive bed comprising side frames, and a cradle extendin rearwardly from said side frames and ormed inte grally therewith.

2. A locomotive bed comprisin side frames including driving box pedesta s, and an integral cradle extending rearwardly from sald side frames and including integral side bearings for a trailer truck.

3. A locomotive bed comprising integral side frames, cradle, and center and side bearings for a trailer truck.

4. A locomotive-bed oomprisin side frames including driving box pedesta s, and cradle forming members extendin rearwardly from the lower portions of t e rear pedestals and formed integrally therewith.

5. A locomotive bed comprising integral side frames, cradle forming members and cross members unitin the rear ends of said members to form a eck plate.

6. A locomotive bed comprising integral side frames, cradle forming members, and

cross members uniting the rear ends of said members-to form a deck plate and provided with a drawbar pocket.

'7. A locomotive bed comprising integral side frames, cradle members, cross members between the side frames and between the cradle members, and sliding boiler support and expansion plate bearings on said cross members.

8. A locomotive bed com rising integral side frames provided with estals, a cradle provided with side bearings for the trailer truck and with brake hanger lugs.

9. A locomotive bed comprising side frames provided with an integral boiler support at their forward ends andwith an integral cradle at their rear ends.

10. A locomotive bed comprising side frames provided with integral steam cylinders at their forward ends and with integral cradle forming members at their rear ends:

11. A locomotive bed comprising side frames and integral steam cylinders.

12. A locomotive bed comprising side frames and integral steam supply chamhers.

13. A locomotive bed comprising side frames and integral steam cylinders and steam supply chambers.

14. A one-piece casting forming a locomotive bed with integral boiler support steam cylinders and steam supply chambers.

15. In a locomotive bed, integral side frames, steam cylinders, driving box pedestals, a cradle, and trailer truck bearings.

16. A locomotive frame having a guide yoke formed integrally therewith.

17. A locomotive frame havin cylinder and a guide yoke formed ly therewith.

18. A locomotive frame having driving box pedestals and a guide yoke formed integrall therewith.

19. X locomotive side frame havin driving boxpedestals, a guide yoke, an steam cylinders formed integrally therewith.

20. In alocomotive frame, a cradle and an integral air cylinder bracket formed on the a steam integralside of said cradle.

21. A locomotive unitary structure comprisin a cradle with an air cylinder bracket and a rake hanger lug'cast integrally with H. M. PFLAGER.

riving box ped- 

